Nanoemulsion, composition for topical use, ophthalmic support, pharmaceutical composition, cosmetic use of nanoemulsion, cosmetic care and / or hydration process, use of nanoemulsion and process of preparing a nanoemulsion.

摘要

B "NANOEMULSION, COMPOSITION FOR TOPICAL USE, OPHTHALMIC SUPPORT, PHARMACEUTICAL COMPOSITION, COSMETIC USE OF NANOEMULSION, COSMETIC PROCESS OF HEALTH AND / OR HYDRAULATION PROTECTION, UTILIZATION OF A HOSPITAL PROPERTY". of a nanoemulsion whose oil globules have an average size of less than 100 nm, which contains a solid surfactant at a temperature less than or equal to 45 ° C, chosen from ethoxylated fatty ethers and ethoxylated fatty esters, and at least one oil with a weight molecular weight greater than 400, and the weight ratio of the amount of oily phase to the amount of surfactant varies from 2 to 10. The surfactant used is chosen, for example, from ethoxylated ethers of behenic alcohol that comprises from 5 to 30 units of ethylene, of ethoxylated ether of stearyl alcohol comprising 2 units of ethylene oxide, the ester of stearic acid comprising 4 The units of ethylene oxide, behenic acid ester comprise 8 units of ethylene oxide, and mixtures thereof. The emulsion obtained is transparent and stable during storage. It can contain high amounts of oil while maintaining good transparency and having good cosmetic properties. It can be a topical composition, a pharmaceutical composition or an ophthalmic composition. The present invention also deals with the use of nanoemulsion according to the present invention in the cosmetic and dermatological fields, in particular for the hydration of the skin and / or mucous membranes, as well as for the treatment of hair, and in the ophthalmological field as eye drops for the treatment of eyes.